发明名称 |
CHORMATIC CONFOCAL METROLOGICAL APPARATUS |
摘要 |
<p>Metrological apparatus and a confocal sensor for use in such apparatus are described. The confocal sensor (1) has an optical pinhole (1 1) adapted for letting through a light beam (2). An optical assembly of the sensor has a first lens (12) having a refractive profile (121) and a diffractive profile (122) and a second lens (13) having at least a refractive profile (131). The refractive profile (121) of the first lens (12) and the refractive profile (131) of the second lens (13) focus the light beam (2) into a focused beam (21 ). The diffractive profile (122) of the first lens (12) creates longitudinal chromatic aberration so that the focused beam (21) has a focal zone with a longitudinal depth (R).</p> |
申请公布号 |
WO2013093459(A3) |
申请公布日期 |
2014.01.09 |
申请号 |
WO2012GB53187 |
申请日期 |
2012.12.19 |
申请人 |
TAYLOR HOBSON LIMITED;RAYER, MATHIEU |
发明人 |
RAYER, MATHIEU |
分类号 |
G01B11/02;G02B21/00 |
主分类号 |
G01B11/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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